1.

Explain the following terms with suitable examples : (i) Cationic detergents (ii) Anionic detergents and (iii) Non-ionic detergents.

Answer»

Solution :(i) Cationic detergents : These are QUATERNARY AMMONIUM salts. For example, cetyltrimethy- lammonium CHLORIDE.
(ii) Anionic detergents : These are so called because a large part of their molecules are anions. These are of two types :
(a) Sodium alkyl sulphates : For example, sodium lauryl sulphate, `C_(11)H_(23)CH_(2)OSO_(3)Na`.
(b) Sodium alkylbenzenesulphonates : The most widely used domestic detergent is sodium dodecylbenzenesulphonate (SDS).
(iii) Neutral or non-ionic detergents : These are ESTERS of high molecular mass alcohols with fatty acids. For example, polyethylene glycol stearate,
`UNDERSET("Polyethylene glycol stearate")(CH_(3)(CH_(2))_(16)COO(CH_(2)CH_(2)O)_(n)CH_(2)CH_(2)OH)`


Discussion

No Comment Found

Related InterviewSolutions